up" is a figure of speech for young
or middle-aged people's disclosure of their
secret attempts to entice a professor by engaging in sexual acts.
The term comes from the well know phrase
"fuddle" which refers to cuddling while making love.
up is quite popular among
college applicants nowadays.
Haley, why don't you go "fuddle yourself
up" to that college professor. You might have a way into college then.
If you "fuddle yourself
up", professors are more likely
to write you a letter of recommendation.